$147+ Cheap flights from Pennsylvania to Idaho
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BOI
Jul 20 — Jul 271
Round-trip
1 adult, Economy
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Cheapest flights from Pennsylvania to IdahoExplore the most affordable flight options available from Pennsylvania to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 20, 2026.
Explore the most affordable flight options available from Pennsylvania to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 20, 2026.
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:15 am
IAD
- JAC
1 stop6h 57m
Delta
Fri 11/61:10 pm
JAC
- IAD
1 stop8h 36m
Delta
Deal found 6/17![Delta logo]()
$241
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:05 am
IAD
- JAC
2 stops11h 00m
Delta
Wed 11/47:15 am
JAC
- IAD
2 stops9h 11m
Delta
Deal found 6/15![Delta logo]()
$251
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:00 am
IAD
- GEG
1 stop8h 38m
Delta
Mon 11/210:45 pm
GEG
- IAD
1 stop7h 26m
Delta
Deal found 6/16![Delta logo]()
$275
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:46 pm
IAD
- BOI
1 stop7h 00m
Delta
Mon 7/1312:20 pm
BOI
- IAD
1 stop9h 48m
Delta
Deal found 6/17![Delta logo]()
$293
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:05 am
IAD
- JAC
2 stops11h 00m
Delta
Sun 11/151:10 pm
JAC
- IAD
1 stop8h 36m
Delta
Deal found 6/17![Delta logo]()
$295
This American Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:09 am
IAD
- GEG
1 stop8h 45m
American Airlines
Sat 9/55:40 am
GEG
- IAD
1 stop9h 47m
American Airlines
Deal found 6/19![American Airlines logo]()
$295
This Alaska Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:00 am
EWR
- BOI
1 stop8h 14m
Alaska Airlines
Wed 10/286:01 pm
BOI
- EWR
1 stop10h 03m
Alaska Airlines
Deal found 6/16![Alaska Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:00 am
IAD
- JAC
2 stops12h 29m
Delta
Sat 11/71:10 pm
JAC
- IAD
2 stops9h 10m
Delta
Deal found 6/15![Delta logo]()
$300
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:10 am
IAD
- JAC
1 stop7h 11m
United Airlines
Sat 10/177:50 am
JAC
- IAD
1 stop6h 11m
United Airlines
Deal found 6/17![United Airlines logo]()
$304
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:30 am
DCA
- JAC
1 stop6h 51m
United Airlines
Sat 10/177:50 am
JAC
- DCA
1 stop7h 13m
United Airlines
Deal found 6/17![United Airlines logo]()
$304
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:14 am
IAD
- BOI
1 stop10h 32m
American Airlines
Thu 7/912:15 pm
BOI
- IAD
1 stop8h 37m
American Airlines
Deal found 6/18![American Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:10 am
IAD
- GEG
1 stop8h 10m
Delta
Tue 9/229:17 am
GEG
- IAD
1 stop10h 32m
Delta
Deal found 6/19![Delta logo]()
$305
Best flights from Pennsylvania to IdahoDiscover carefully curated flight deals from Pennsylvania to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 20, 2026.
Discover carefully curated flight deals from Pennsylvania to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 20, 2026.
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:10 am
IAD
- GEG
1 stop8h 10m
Delta
Mon 9/2811:10 am
GEG
- IAD
1 stop8h 39m
Delta
Deal found 6/15![Delta logo]()
$275
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/43:41 pm
EWR
- BOI
1 stop7h 48m
United Airlines
Fri 7/107:05 pm
BOI
- EWR
1 stop8h 46m
United Airlines
Deal found 6/19![United Airlines logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:41 pm
EWR
- BOI
1 stop8h 05m
Alaska Airlines
Wed 11/115:49 am
BOI
- EWR
1 stop8h 24m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$297
This American Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:50 am
EWR
- BOI
1 stop9h 30m
American Airlines
Tue 8/258:01 am
BOI
- EWR
2 stops11h 59m
American Airlines
Deal found 6/19![American Airlines logo]()
$410
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:05 am
IAD
- GEG
1 stop8h 57m
Delta
Mon 10/1910:50 am
GEG
- IAD
1 stop10h 01m
Delta
Deal found 6/16![Delta logo]()
$275
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:10 am
IAD
- GEG
1 stop8h 10m
Delta
Mon 9/2810:50 pm
GEG
- IAD
1 stop7h 20m
Delta
Deal found 6/15![Delta logo]()
$275
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/35:41 pm
IAD
- BOI
1 stop6h 56m
United Airlines
Sat 7/410:35 am
BOI
- IAD
1 stop8h 50m
United Airlines
Deal found 6/16![United Airlines logo]()
$318
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:05 am
IAD
- GEG
1 stop10h 40m
Delta
Wed 10/2810:45 pm
GEG
- IAD
1 stop7h 26m
Delta
Deal found 6/16![Delta logo]()
$275
This Alaska Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:00 am
EWR
- BOI
1 stop8h 14m
Alaska Airlines
Wed 10/288:00 pm
BOI
- EWR
1 stop8h 04m
Alaska Airlines
Deal found 6/15![Alaska Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:10 am
IAD
- GEG
1 stop8h 10m
Delta
Mon 10/511:10 am
GEG
- IAD
1 stop8h 39m
Delta
Deal found 6/15![Delta logo]()
$275
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/252:43 pm
IAD
- GEG
1 stop9h 03m
United Airlines
Sat 8/291:37 pm
GEG
- IAD
1 stop6h 42m
United Airlines
Deal found 6/18![United Airlines logo]()
$352
This Alaska Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:33 pm
IAD
- GEG
1 stop9h 21m
Alaska Airlines
Wed 10/2812:44 pm
GEG
- IAD
1 stop8h 15m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$353
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:10 am
IAD
- GEG
1 stop8h 10m
Delta
Sat 9/2611:10 am
GEG
- IAD
1 stop8h 39m
Delta
Deal found 6/15![Delta logo]()
$275
This American Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/78:27 am
JFK
- BOI
1 stop7h 53m
American Airlines
Fri 8/148:01 am
BOI
- JFK
1 stop11h 02m
American Airlines
Deal found 6/19![American Airlines logo]()
$418
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:20 am
IAD
- GEG
1 stop9h 33m
Delta
Tue 9/2212:38 pm
GEG
- IAD
1 stop8h 54m
Delta
Deal found 6/17![Delta logo]()
$275
This Alaska Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:53 pm
IAD
- BOI
1 stop19h 53m
Alaska Airlines
Tue 8/188:00 pm
BOI
- IAD
1 stop20h 14m
Alaska Airlines
Deal found 6/15![Alaska Airlines logo]()
$372
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/291:15 pm
IAD
- JAC
1 stop7h 27m
United Airlines
Thu 7/92:44 pm
JAC
- IAD
1 stop8h 01m
United Airlines
Deal found 6/16![United Airlines logo]()
$378
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/242:00 pm
DCA
- JAC
1 stop6h 41m
United Airlines
Mon 8/317:15 am
JAC
- DCA
1 stop8h 54m
United Airlines
Deal found 6/17![United Airlines logo]()
$380
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:00 am
IAD
- BOI
1 stop7h 14m
Delta
Sun 9/65:30 am
BOI
- IAD
1 stop6h 39m
Delta
Deal found 6/18![Delta logo]()
$293
This Alaska Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:47 pm
IAD
- GEG
1 stop9h 12m
Alaska Airlines
Sat 9/126:00 am
GEG
- IAD
1 stop9h 14m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:35 pm
PHL
- JAC
1 stop7h 06m
United Airlines
Tue 8/251:45 pm
JAC
- PHL
2 stops9h 14m
United Airlines
Deal found 6/17![United Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/276:00 am
IAD
- BOI
1 stop8h 53m
Delta
Thu 8/611:10 pm
BOI
- IAD
1 stop8h 10m
Delta
Deal found 6/20![Delta logo]()
$293
This Alaska Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:00 am
IAD
- GEG
1 stop8h 31m
Alaska Airlines
Sat 9/126:00 am
GEG
- IAD
1 stop9h 14m
Alaska Airlines
Deal found 6/15![Alaska Airlines logo]()
$401
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/255:59 pm
EWR
- BOI
1 stop8h 00m
Delta
Tue 9/16:45 pm
BOI
- EWR
1 stop9h 15m
Delta
Deal found 6/16![Delta logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:00 am
IAD
- BOI
2 stops15h 20m
Alaska Airlines
Fri 9/186:49 pm
BOI
- IAD
1 stop21h 25m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$422
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:20 am
IAD
- GEG
1 stop9h 38m
Delta
Tue 9/1511:10 am
GEG
- IAD
1 stop8h 39m
Delta
Deal found 6/17![Delta logo]()
$311
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/191:10 pm
IAD
- JAC
1 stop7h 31m
United Airlines
Thu 8/274:25 pm
JAC
- IAD
1 stop6h 07m
United Airlines
Deal found 6/15![United Airlines logo]()
$480
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/253:29 pm
PHL
- JAC
1 stop6h 41m
Delta
Thu 9/38:35 am
JAC
- PHL
1 stop6h 59m
Delta
Deal found 6/18![Delta logo]()
$311
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/141:00 pm
DCA
- JAC
1 stop10h 01m
United Airlines
Thu 7/237:30 am
JAC
- DCA
1 stop7h 42m
United Airlines
Deal found 6/15![United Airlines logo]()
$480
This American Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/810:00 am
DCA
- JAC
1 stop7h 50m
American Airlines
Thu 8/1311:48 am
JAC
- DCA
2 stops9h 45m
American Airlines
Deal found 6/19![American Airlines logo]()
$814
Last-minute flights from Pennsylvania to IdahoDiscover last-minute flight deals from Pennsylvania to Idaho. Data last updated June 20, 2026 and is based on user searches.
Discover last-minute flight deals from Pennsylvania to Idaho. Data last updated June 20, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/291:15 pm
IAD
- JAC
1 stop7h 27m
United Airlines
Thu 7/94:23 pm
JAC
- IAD
1 stop6h 22m
United Airlines
Deal found 6/15![United Airlines logo]()
$366
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/35:41 pm
IAD
- BOI
1 stop6h 56m
United Airlines
Sat 7/410:35 am
BOI
- IAD
1 stop8h 50m
United Airlines
Deal found 6/16![United Airlines logo]()
$318
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/43:41 pm
EWR
- BOI
1 stop7h 48m
United Airlines
Fri 7/107:05 pm
BOI
- EWR
1 stop8h 46m
United Airlines
Deal found 6/19![United Airlines logo]()
$297
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:14 am
IAD
- BOI
1 stop10h 32m
American Airlines
Thu 7/912:15 pm
BOI
- IAD
1 stop8h 37m
American Airlines
Deal found 6/18![American Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/411:30 am
JFK
- BOI
1 stop9h 43m
Delta
Sun 7/1211:10 pm
BOI
- JFK
1 stop8h 50m
Delta
Deal found 6/17![Delta logo]()
$348
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:00 am
IAD
- BOI
1 stop8h 54m
Delta
Tue 7/142:50 pm
BOI
- IAD
1 stop6h 30m
Delta
Deal found 6/17![Delta logo]()
$366
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:46 pm
IAD
- BOI
1 stop7h 00m
Delta
Mon 7/1312:20 pm
BOI
- IAD
1 stop9h 48m
Delta
Deal found 6/17![Delta logo]()
$293
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:46 pm
IAD
- BOI
1 stop7h 00m
Delta
Fri 7/3111:10 pm
BOI
- IAD
1 stop8h 50m
Delta
Deal found 6/18![Delta logo]()
$317
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:46 pm
IAD
- BOI
1 stop7h 00m
Delta
Wed 7/151:05 pm
BOI
- IAD
1 stop8h 24m
Delta
Deal found 6/17![Delta logo]()
$331
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:46 pm
IAD
- BOI
1 stop7h 00m
Delta
Thu 7/1611:10 pm
BOI
- IAD
1 stop8h 16m
Delta
Deal found 6/17![Delta logo]()
$333
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:00 am
IAD
- BOI
1 stop9h 44m
Delta
Fri 8/711:10 pm
BOI
- IAD
1 stop8h 54m
Delta
Deal found 6/16![Delta logo]()
$355
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:10 am
IAD
- BOI
1 stop7h 22m
United Airlines
Wed 8/55:00 am
BOI
- IAD
1 stop6h 26m
United Airlines
Deal found 6/15![United Airlines logo]()
$363
One-way flights from Pennsylvania to IdahoSearch for one-way flight options from Pennsylvania to Idaho. Find affordable one-way fares based on user searches. Data last updated June 20, 2026.
Search for one-way flight options from Pennsylvania to Idaho. Find affordable one-way fares based on user searches. Data last updated June 20, 2026.
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/158:35 am
IAD
- BOI
1 stop8h 56m
United Airlines
Deal found 6/18![United Airlines logo]()
$147
This American Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:50 am
EWR
- BOI
1 stop9h 30m
American Airlines
Deal found 6/15![American Airlines logo]()
$149
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:00 am
JFK
- BOI
1 stop8h 44m
Delta
Deal found 6/16![Delta logo]()
$149
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:40 am
LGA
- JAC
1 stop7h 20m
American Airlines
Deal found 6/17![American Airlines logo]()
$151
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:46 am
LGA
- JAC
2 stops11h 25m
Delta
Deal found 6/16![Delta logo]()
$156
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/33:29 pm
PHL
- JAC
1 stop6h 41m
Delta
Deal found 6/16![Delta logo]()
$156
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:10 am
IAD
- BOI
1 stop7h 22m
United Airlines
Deal found 6/16![United Airlines logo]()
$167
This American Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:50 am
EWR
- BOI
1 stop9h 30m
American Airlines
Deal found 6/16![American Airlines logo]()
$170
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/42:35 pm
IAD
- GEG
1 stop8h 55m
United Airlines
Deal found 6/18![United Airlines logo]()
$170
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:00 am
IAD
- BOI
1 stop9h 42m
Delta
Deal found 6/15![Delta logo]()
$171
This Expedia deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:35 pm
IAD
- BOI
1 stop20h 27m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$176
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/87:00 am
IAD
- BOI
1 stop10h 11m
Delta
Deal found 6/19![Delta logo]()
$177
Find flight deals from Pennsylvania to Idaho
Keep the following information in mind while searching for Pennsylvania to Idaho flight deals. Data was last updated June 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $241 (Delta) |
One-way from | $147 (United Airlines) |
Popular in | June |
Cheapest in | September |
Average price | $595 |
Cheapflights Fare Finder
Customize your flight search to find flights from Pennsylvania to Idaho that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 20, 2026.
Use the filters below to find and compare flights from Pennsylvania to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Spokane
IAD - GEG
IADGEG
Washington, D.C. Dulles Intl
Fri 9/25
7:10 am-12:20 pm
1 stop8h 10m
Spokane
Mon 9/28
11:10 am-10:49 pm
1 stop8h 39m
$275
Washington, D.C.Spokane
IAD - GEG
IADGEG
Washington, D.C. Dulles Intl
Wed 10/14
7:05 am-1:02 pm
1 stop8h 57m
Spokane
Mon 10/19
10:50 am-11:51 pm
1 stop10h 01m
$275
Washington, D.C.Spokane
IAD - GEG
IADGEG
Washington, D.C. Dulles Intl
Thu 9/24
7:10 am-12:20 pm
1 stop8h 10m
Spokane
Mon 9/28
10:50 pm-9:10 am
1 stop7h 20m
$275
Washington, D.C.Spokane
IAD - GEG
IADGEG
Washington, D.C. Dulles Intl
Tue 10/27
7:05 am-2:45 pm
1 stop10h 40m
Spokane
Wed 10/28
10:45 pm-9:11 am
1 stop7h 26m
$275
Washington, D.C.Spokane
IAD - GEG
IADGEG
Washington, D.C. Dulles Intl
Fri 9/25
7:10 am-12:20 pm
1 stop8h 10m
Spokane
Mon 10/5
11:10 am-10:49 pm
1 stop8h 39m
$275
Washington, D.C.Spokane
IAD - GEG
IADGEG
Washington, D.C. Dulles Intl
Fri 9/25
7:10 am-12:20 pm
1 stop8h 10m
Spokane
Sat 9/26
11:10 am-10:49 pm
1 stop8h 39m
$275
Washington, D.C.Spokane
IAD - GEG
IADGEG
Washington, D.C. Dulles Intl
Tue 9/15
6:20 am-12:53 pm
1 stop9h 33m
Spokane
Tue 9/22
12:38 pm-12:32 am
1 stop8h 54m
$275
Washington, D.C.Boise
IAD - BOI
IADBOI
Washington, D.C. Dulles Intl
Mon 8/31
7:00 am-12:14 pm
1 stop7h 14m
Boise Air Term. Gowen Fld
Sun 9/6
5:30 am-2:09 pm
1 stop6h 39m
$293
Washington, D.C.Boise
IAD - BOI
IADBOI
Washington, D.C. Dulles Intl
Mon 7/27
6:00 am-12:53 pm
1 stop8h 53m
Boise Air Term. Gowen Fld
Thu 8/6
11:10 pm-9:20 am
1 stop8h 10m
$293
NewarkBoise
EWR - BOI
EWRBOI
Newark
Sat 7/4
3:41 pm-9:29 pm
1 stop7h 48m
Boise Air Term. Gowen Fld
Fri 7/10
7:05 pm-5:51 am
1 stop8h 46m
$297
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Pennsylvania to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Pennsylvania with our price prediction graph.
IAD-GEG
EWR-BOI
IAD-BOI
JFK-BOI
IAD-JAC
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Pennsylvania to Idaho
USPA-USID
IAD-GEG
EWR-BOI
IAD-BOI
JFK-BOI
What is the cheapest month to book a flight from Pennsylvania to Idaho?
Currently, September is the cheapest month in which you can book a flight from Pennsylvania to Idaho (average of $88). Flying from Pennsylvania to Idaho in December is currently the most expensive (average of $308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Pennsylvania to Idaho?
How far ahead should I book a flight from Pennsylvania to Idaho?
The price you pay for your flight from Pennsylvania to Idaho may vary depending on when you book. For the best chance of a lower fare, look to book 7 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing Idaho
Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated June 20, 2026.
Read through reviews of airlines operating flights from Pennsylvania to Idaho, such as Southwest,Delta, andUnited Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Overall
7.9
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Overall
7.9
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Overall
7.9
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Overall
7.9
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Overall
7.9
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Pennsylvania to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Pennsylvania to Idaho
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Pennsylvania to Idaho by cabin class
Find flights from Pennsylvania to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Pennsylvania and Idaho flights
Browse other Pennsylvania and Idaho flight options. Last updated on June 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Idaho
Find the right flight back to Pennsylvania after your stay in Idaho
Pennsylvania to Idaho flights
Consider these flights traveling from Pennsylvania to Idaho.
Top 4 airlines flying from Pennsylvania to Idaho
Discover the top 4 airlines that operate flights from Pennsylvania to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$175 | Average$479 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$237 | Average$536 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$283 | Average$537 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$350 | Average$591 | FlexibilityNo cancel fee | On-time63% |